挑战 7：我们的数学运算不见了！使用变量名称来帮助您插入正确的符号！
- 让 Goldie 说出2 plus 5的答案。
- 让Goldie说出12 - 6的答案。
- 让 Goldie 说出25乘以25的答案。
- 让 Goldie 说出2846除以2的答案。
To navigate the page using the TAB key, first press ESC to exit the code editor.
挑战 7：我们的数学运算不见了！使用变量名称来帮助您插入正确的符号！
To navigate the page using the TAB key, first press ESC to exit the code editor.
Your micro:bit is not set up for this program. Follow these steps to use your device with Codesters:
Your micro:bit has an old version of the Codesters binary file. Follow these steps to update the file on your micro:bit:
Warning: This will erase any existing program on your micro:bit.
Having trouble? Check out the micro:bit instructions to update your firmware.
Setting up your micro:bit
Calibrate your micro:bit by tilting it until all the LEDs are lit.
For a demonstration see the micro:bit calibration instructions.
Try the following steps to connect to your Micro:bit:
1. You may need to reload this page and try your program again.
2. Try disconnecting and reconnecting your Micro:bit. Then reload the page and run your program again.
3. If you are still having problems your Micro:bit may have an old firmware version that is incompatible with Codesters.
To update the firmware follow these Micro:bit instructions.
Are you already running a Codesters project in another tab or window?
Micro:bit can only connect to one web page at a time. Try stopping other Codesters projects or closing other tabs or windows that may be using your Micro:bit.
If that doesn't fix the problem try disconnecting your Micro:bit, reloading this page, and reconnecting your Micro:bit.
Status: Connected!
Status: Connecting...
Status: Still connecting...
Status: Failure
Status: Not Found
Is your Micro:bit connected?